WebNov 12, 2024 · Abstract. Private Information Retrieval (PIR) allows a client to obtain data from a public database without disclosing the locations accessed. Traditionally, the stress is on preserving sublinear work for the client, while the server’s work is taken to inevitably be at least linear in the database size. Beimel, Ishai and Malkin (JoC 2004 ... WebDec 10, 2024 · In a doubly efficient PIR (DEPIR), the database is first preprocessed, but the server can subsequently answer any client's query in time that is sub-linear in the database size. Prior work gave a plausible candidate for a public-key variant of DEPIR, where a trusted party is needed to securely preprocess the database and generate a ...
Doubly Efficient Interactive Proofs for General Arithmetic …
WebApr 24, 2024 · We note, despite much research activity, no prior solution simultaneously provides privacy, anonymity and efficiency in the single-server setting. Doubly Efficient PIR. As noted above, the server run-time in a PIR protocol is inherently linear in the data size, whereas in PANDA we want the run time of both the client and the server to WebDec 8, 2024 · In a doubly efficient PIR (DEPIR), the database is first preprocessed, but the server can subsequently answer any client's query in time that is sub-linear in the … laktoseintoleranz medikamente
Private Stateful Information Retrieval Proceedings of the 2024 …
WebOct 15, 2024 · Private information retrieval (PIR) is a fundamental tool for preserving query privacy when accessing outsourced data. ... Towards doubly efficient private information retrieval. In Theory of Cryptography Conference. Springer, 694--726. Google Scholar Digital Library; David L Chaum. 1981. Untraceable electronic mail, return addresses, and ... WebWe show how to construct rewindable ORAM using symmetric-key doubly efficient PIR (SK-DEPIR) (Canetti-Holmgren-Richelson, Boyle-Ishai-Pass-Wootters: TCC ’17). We then show how to use rewindable ORAM, along with virtual black-box (VBB) obfuscation for specific circuits, to construct RAM-FHE. The latter primitive can be heuristically ... Webpre-processing stage, and constructed a multi-server preprocessing PIR scheme that is doubly e cient. That is, both the client and the server perform o(N) per-query computation after an initial preprocessing computation of size (N). Achieving doubly-e cient PIR in the single server setting remained completely open until the recent laktoseintoleranz baby stuhlgang